21234160

素因数分解:

$2^4\times 5^1\times {\mathrm{265427}}^1$

素因数の和:265440

約数の個数: 20

約数和(自身を含む): 49369608

約数和(自身を除く): 28135448

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 265427, 530854, 1061708, 1327135, 2123416, 2654270, 4246832, 5308540, 10617080, 21234160]

約数ペア:

[(1, 21234160), (2, 10617080), (4, 5308540), (5, 4246832), (8, 2654270), (10, 2123416), (16, 1327135), (20, 1061708), (40, 530854), (80, 265427)]